hydrangea - any of various deciduous or evergreen shrubs of the genus Hydrangea

genus Carpenteria - 1 species; sometimes placed in family Saxifragaceae

Australia, Commonwealth of Australia - a nation occupying the whole of the Australian continent; aboriginal tribes are thought to have migrated from southeastern Asia 20,000 years ago; first Europeans were British convicts sent there as a penal colony

Australia - the smallest continent; between the South Pacific and the Indian Ocean

gulf - an arm of a sea or ocean partly enclosed by land; larger than a bay